If an insurance product is being sold on bank premises, it is definitely covered. Insurance sold at your offsite locations may also be covered if it meets one of the other prongs of the "on behalf of" test.
You don't indicate what type of insurance is being sold, but you should look at your loan application and solicitation procedures and determine if you are soliciting before or after the credit decision is being communicated. If it's before, then you have to give the credit disclosures.
Either your insurance affiliate or the bank can give the disclosures; however, as a practical matter, the bank may be the only one in a position to give disclosures at the time of application if an insurance product is sold in connection with a credit transaction. Good luck.
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The opinions expressed are mine and not those of my employer